Revolver



FIG. 1 is a right side elevational view of a revolver showing my new design;

FIG. 2 is a left side view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a front view thereof;

FIG. 5 is a bottom view thereof;

FIG. 6 is a top view thereof; and,

FIG. 7 is a right side perspective view thereof.

All broken lines shown in the drawings are for environmental purposes only and form no part of the claimed design. 

The ornamental design for a revolver, as shown and described. 